Dimorphite

General Information:
 Chemical Formula:
As4S3
 Composition:
(Molecular Weight = 395.88 gm)
Arsenic 75.70 % As
Sulfur 24.30 % S 
 Empirical Formula:
As4S3
Physical Properties:
 Cleavage:
None
 Color:
orange.
 Density:
3.58 - 3.6, Average = 3.59
 Diaphaniety:
Transparent
 Hardness:
1.5 - Between Talc and Gypsum
 Luster:
Adamantine
 Streak:
yellow
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